Saw-guide.



JNO. 694,338. v Patented Feb. 25, |902.

" C. 3.--VAN HUB-N.

SAW GUIDE.

(Application led Sept. 2b, 1901.)

(lo Madel.)

A1 l C@ I 7/ 73 9 227* ff@ 744 207.9 l 77 Tg3] WVM/wow@ Asmumun, 0.2:. Tu: cams Pneus, co.. Pumaumo w UNITE CHARLES R. VAN HORN, OF BAY MILLS, MICHIGAN, ASSIGNOR TO THE HALL AND MUNSON CO., OF BAY MILLS, MICHIGAN.

SAW-GUIDE.

SPECIFICATION forming part of Letters Patent No. 694,338, dated February 25, 1902.

I Application filed September Z5, 19 0l. Serial No. 76,485. (No model.)

.3 all whom it may concern:

Be it known that I, CHARLES R. VAN HORN, acitizen of the United States, residing at Bay Mills, in the county of Chippewa and State of Michigan, have invented a new and useful Saw-Guide, of which the following is a speciiication. l

' The present invention relates to saw-g uid es, and more particularly to that class of guides employed in connection with ban d-saw mills and located upon the band millframe.

One of the objects of the invention is to improve guides of this character by providing a structure having a wide range of adjustment to suit various kinds of saws and to overcome the difficulties Inet with.

A further object is to provide means for rigidly holding the guide in fixed position when the desired adjustment has been obtained, so that there is no danger of its accidental displacement, with the accompanying damage resulting from a misdirected or unguided. saw.

In order that theinvention may be readily understood, the embodiment thereofwhich is at present considered preferable and has proven entirely satisfactory in operation is fully set forth in the following specification and shown in the accompanying drawings. The right is reserved, however, to make such changes from the construction described and shown as the appended claims will cover.

In the drawings, Figure l is a side elevation of a portion of the band mill-f rame, showing the improved guide applied thereto. Fig. 2 is a top plan view of the same. Fig. 3 is a vertical transverse sectional view taken on the line 3 3 of Fig. 2. Fig. 4is a vertical longitudinal sectional view taken on the line 4 4 of Fig. 2. Fig. 5 is adetail perspective view of one of the guide elements.

Similar numerals of reference designate corresponding parts in all the figures of the drawings.

The construction shown is primarily intended for use in connection with a doublecutting band-saw mill, and a portion of a double band-saw is therefore shown in Fig. 1 and designated 10, the band mill-frame forming the support for the guide being designated 11. The guide, however, is capable of use in connection with other kinds of saws,

and theinvention is, of course, not limited solely to the doublesaw shown. The guide consists of two parts or sections arranged to bear against opposite sides of the saw, and as these sections are exact counterparts of each other but one need be described.

The portion of the frame illustrated forms a support for the section and is provided with spaced upstanding projections 12 in the form of flanges, extending transversely across the support and having opposite ends 13 disposed longitudinally thereof and provided with horizontal threaded openings. The guidesection is arranged between these iianges and is constructed as follows: A base-plate 14 is located upon the support, said support being provided with a longitudinally-disposed slot 15, through which is passed a bolt 16, that pivotally secures the base to the support.

.Adjusting-screws 17, passing through the opposite ends 13 of the flanges of the support, bear against lips 1S, located at the terminals of the base. The base is furthermore provided on opposite sides of its pivot with pairs of spaced upstanding iianges 19, forming channels 20, and upstanding ears 2l are arranged at the rear edge of the base between the ianges of each pair, said ears having horizontal threaded openings 22as snown in Fig. 3. Guide elements (designated asa whole by 24) are slidably mounted in the channels 2O of the base, these elements preferably comprising angular brackets having bifurcated feet 25 and upstanding body portions 26. The feet are provided with vertical slots 27, through which are passed holding-bolts 28, the heads of said bolts being threaded into sockets 29 in the base and their upper ends having suitable heads 30. The bifurcations of the feet are designed to receive the ears 2l of the base, and adjusting-screws 31 pass through said ears and bear against the rear edges of the bifurcations.y The body portions are provided in their rear faces with tapering dovetailed sockets 32, which are located nearer one side edge than the other and receive bearing-blocks 33 of Babbitt or other suitable metal. v

In order to adjust the guide to a saw passing through the same, the bearing-.blocks are adjusted to proper positions against opposite faces of said saw and, if necessary, may be moved toward the front or rear edges by moving the bases lengthwise, the slots 15 permitting of this movement. For a narrow saw the guide elements are placed as shown in the drawings. It employed in connection with a Wide saw, the elements are interchanged, thus throwing the bearing-blocks farther apart. The proper direction of the saw may then be obtained by manipulating the adjusting-screws 17 of the base, and when this position has been obtained the whole may be securely fixed by jamming the several screws tightly or by the use of jam-nuts, as will be readily understood. It will thus be seen that a structure is provided having a wide range of adjustment to suit the various conditions necessary to successful sawing operations. Furthermore, the several parts may be rigidly clamped, so that there is little chance of accidental displacement.

From the foregoing it is thought that the construction, operation, and many advantages ot' the herein-described invention will be apparent to those skilled in the art without further description, and it will be understood that various changes in the size, shape, proportion, and minor details of construction may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. In a saw-guide, the combination with a pair of independently-pivoted bases, of means for holding the bases against movement, and coacting guide elements adjustably mounted on the bases and movable toward and from each other.

2. In asaW-guide,the combination with suitable supporting means, of independentlymovable bases pivoted upon the supporting means, and independent coacting guide elements movably mounted upon the bases.

3. In a saw-guide, the com'bination with a support, of a base pivoted intermediate its ends upon the support, independent guide elements slidably mounted upon the base and movable transversely of the same, said elements being located upon opposite sides of the pivot, and means for holding the guide elements against movement.

4. In a saw-guide, the combination with a support, of a base pivoted intermediate its ends upon the support and having transversely-disposed channels located on opposite sides of the pivot, means for holding the base against movement, independent guide elements slidably mounted in the channels of the base, means for holding the base against movement, and means for holding the guide elements against movement.

5. Inasawguide,thecombinationwithsuitable supporting means, of a base pivotally mounted intermediate its ends upon the supporting means and movable endwise thereon, means for holding'the base against its pivotal and endwise movement, and guide elements mounted upon the base and movable transversely thereof, said guide elements beinglocated on opposite sides of the pivot.

G. In asaw-guide,the combination with suitable supporting means, oli' bases independently pivoted upon the supporting means and movable endwise thereon, means for holding the bases against their pivotal and endwise movement and coacting guide elements mount-ed upon the bases and movable transversely thereof.

7. Inasaw-guide,thecombiuationwithsuitable supporting means, of separate bases located upon the supporting means, pivots connecting the bases and supporting means, said pivots being movable longitudinally upon the s upporting means to permint the endwise movement of the bases, and coacting guide elements mounted upon the bases and movable transversely thereof.

8. In a saw-guide, the combination with a support having upstanding projections, and a longitudinally-disposed siot located between the projections, of a base mounted upon the support, said base having transversely-disposed channels, a pivot-bolt connecting the base and support and passing through the slot of the latter, guide elements slidably mounted in the channels of the base, and adjusting means passing through the projections ot' the support and engaging the base.

9. In a saw-guide, the combination with independently-pivoted bases, of means for moving the bases upon their pivots, and guide elements carried by t-he bases, said elements being located on opposite sides of the pivots of each base.

10. In a saw-guide, the combination with independently-pivoted bases, of independent means for separately moving the bases upon their pivots, and coacting guide elements carried byihe bases and located on opposite sides of the pivots thereof.

ll. The combination with a saw, of independent bases pivoted on opposite sides ot and contiguous to the saw, said pivots being located substantially in line with the center of the saw, guide elements carried by the bases and engaging the saw and means for holding the bases against movement. y

l2. In a saw-guide, the combination with bases pivoted intermediate their ends, of independent means engaging the opposite ends of the bases for separately moving them upon their pivots, and stationary coacting guide elements movably mounted transversely of the bases.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

CHARLES R. VAN HORN.

VVit-nesses:

JNO. E. MCPARLAN, C. W. CoLEY.

IOO 

